A Woman Carries a Heavy Box Across a Room at a Constant

A woman carries a heavy box across a room at a constant speed.How much work does she do on the box while walking?

A) none
B) More information is needed about the weight of the box.
C) More information is needed about the distance walked.
D) More information is needed about the speed and the distance.
E) More information is needed about the weight,distance,and her speed.